Synopsis:
Before meeting them, Ke Jie thought he could get his revenge by killing his father's murderer, then fake his death and go out in style.
But as he went further and further down the path of revenge, and his bonds with them grew stronger, he suddenly realized that he could no longer bring himself to take his own life and die...
That day, the "girl friends" cornered Li Yue, formerly known as Ke Jie. Among them were the newly appointed Sword God of Judgment, Long Quan, the Sword God of Condemnation, Tong Hua, and the Sword God of Adjudication, Blue Shark.
"So you're the Blade King's son, a blade wielder codenamed Blood Demon, and also the Sword God's daughter, the Night Kingdom's little princess, and the Holy Maiden of the Pilgrim Court, a sword maiden codenamed Dark Night and Dawn? And you're also a half-demon, the new ruler of the Myriad Demons Empire, codenamed Pure White Ashen Crow?"
The Sword God of Judgment, Long Quan, interrogated him.
"...That's right. I'm all of those people."
Li Yue replied in a low voice, expressionless, his heart as good as dead.
Everywhere she looked were the sword maidens she had let down.
A dragon girl with white hair and golden eyes, a chuuni mute stepsister, a bratty little shark girl...
Transformation, yuri, one-to-many, gradual gender transition (can switch between male and female forms early on, then permanently becomes female after around 100,000 characters. First transforms into a female form in Chapter 3, and starts getting close with the heroines around Chapter 10.)
A semi-original setting with some strategic mind games and a touch of ensemble storytelling. The synopsis doesn't do it justice, so please read the story.